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