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