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