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