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