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