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