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