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