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