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