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