SQL Select Total

Hello,
Can you please help,
is there an simpler way of writing below script?
Also, when i run below, I don't get the distinct Date.
ie: one day on each line

SELECT Distinct (CAST(FinalizedOrders.OrderDate AS DATE)),(SUM (PUDriverCommission)) AS [Commission],
Case when (SUM (PUDriverCommission))< = 80 then 80 else (SUM (PUDriverCommission)) end AS [Commission2]
FROM FinalizedOrders
INNER JOIN FinalizedOrdersDriverSettlements ON FinalizedOrdersDriverSettlements.OrderNo = FinalizedOrders.OrderNo
INNER Join DriverSettlements ON DriverSettlements.SettlementNo = FinalizedOrdersDriverSettlements.Driver1SettlementNo
Where  DriverNumber =  4024 and settlementdate between '01-01-2015' and '01-31-2015' and OrderDate > '01-01-2015'
Group by CAST(FinalizedOrders.OrderDate AS DATE)
UNION ALL
SELECT Distinct (CAST(FinalizedOrders.OrderDate AS DATE)),(SUM (DELDriverCommission)) AS [Commission],
Case when (SUM (DELDriverCommission))< = 80 then 80 else (SUM (DELDriverCommission)) end AS [Commission2]
FROM FinalizedOrders
INNER JOIN FinalizedOrdersDriverSettlements ON FinalizedOrdersDriverSettlements.OrderNo = FinalizedOrders.OrderNo
INNER Join DriverSettlements ON DriverSettlements.SettlementNo = FinalizedOrdersDriverSettlements.Driver2SettlementNo
Where  DriverNumber =  4024 and settlementdate between '01-01-2015' and '01-31-2015' and OrderDate > '01-01-2015'
Group by CAST(FinalizedOrders.OrderDate AS DATE)
UNION ALL
SELECT Distinct (CAST (FinalizedOrders.OrderDate AS DATE)),(SUM (Driver3Commission)) AS [Commission],
Case when (SUM (Driver3Commission))< = 80 then 80 else (SUM (Driver3Commission)) end AS [Commission2]
FROM FinalizedOrders
INNER JOIN FinalizedOrdersDriverSettlements ON FinalizedOrdersDriverSettlements.OrderNo = FinalizedOrders.OrderNo
INNER Join DriverSettlements ON DriverSettlements.SettlementNo = FinalizedOrdersDriverSettlements.Driver3SettlementNo
Where  DriverNumber =  4024 and settlementdate between '01-01-2015' and '01-31-2015' and OrderDate > '01-01-2015'
Group by CAST(FinalizedOrders.OrderDate AS DATE)

Any help is appreciated,
Thanks,