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