One vertex per element, one color per generator, with an edge from x to x·s.
(1,2)(3,6)(4,5)(7,8)(9,10,14,13)(11,15,12,16)(19,27)(20,21)(23,30)(24,26)(28,29)(31,32)(2,5)(6,8)(9,11,14,12)(10,15,13,16)(17,18)(19,23)(20,24)(21,26)(22,25)(27,30)(28,31)(29,32)(9,10,14,13)(11,16,12,15)(17,19,22,28)(18,23,25,31)(20,27,21,29)(24,30,26,32)(1,3,4,7)(2,6,5,8)(9,12,14,11)(10,16,13,15)(17,20,22,21)(18,24,25,26)(19,27,28,29)(23,30,31,32)(9,13,14,10)(11,15,12,16)(18,25)(23,31)(24,26)(30,32)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.