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