1. Alight at East Hills Station and take Crosselys Service (which is now Connex Services) bus 922.
2. Alight at Bankstown Station and take Westway Services (which is now Transit First) bus 860.
3. Alight at Liverpool Station and take Westway Services (which is now Transit First) bus 860.
4. Alight at Panania Station, within walking distance of the campus - 30 mins.
You can also get the 922 straight to UWS Banktown as well.
I'm toward Bonnyrigg, so i can get the T-Way to Liverpool station. Catch some bus (i'm not sure which one) from liverpool station, and it'll take me direct to UWS bankstown. Pretty sweet, eh?
of course i'd rather drive though.