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