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