Wait till orientation. You can get one from student central. Though the wait will be long, so I would personally advise you to show up a little earlier than when orientation starts because people will be lining up like crazy once the orientation presentation thing is finished.
Hi, You can get your student card from Student Central. For the location of the Student Central closest to you, please visit http://www.uws.edu.au/studentcentral. Alternatively, you can opt to wait until your Orientation to get your student card. Best regards, UWS Course Info