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