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)(11,15)(12,13)(14,16)(17,18)(19,24)(20,25)(21,23)(22,26)(27,31)(28,32)(29,30)(1,3,6,5)(2,7,4,8)(10,13)(14,15)(17,19,23,22)(18,24,21,26)(20,28,30,27)(25,32,29,31)(1,3,6,5)(2,8,4,7)(9,10)(11,14)(12,13)(15,16)(17,18,23,21)(19,26,22,24)(20,29,30,25)(27,31,28,32)(1,4,6,2)(3,7,5,8)(9,11)(10,14)(12,16)(13,15)(17,20,23,30)(18,25,21,29)(19,27,22,28)(24,31,26,32)(1,5,6,3)(2,7,4,8)(17,21,23,18)(19,24,22,26)(20,29,30,25)(27,31,28,32)(17,22,23,19)(18,24,21,26)(20,28,30,27)(25,31,29,32)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.