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