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