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