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