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