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