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