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