One vertex per element, one color per generator, with an edge from x to x·s.
(5,6)(7,8)(9,10,12,13)(11,14,15,16)(17,18,23,28)(19,29,20,26)(21,24,31,25)(22,32,30,27)(1,2,3,4)(10,13)(14,16)(17,19,30,31,23,20,22,21)(18,24,32,26,28,25,27,29)(2,4)(9,11,12,15)(10,14,13,16)(17,20,23,19)(18,25,28,24)(21,30,31,22)(26,27,29,32)(6,8)(11,15)(14,16)(17,21,22,20,23,31,30,19)(18,26,27,24,28,29,32,25)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.