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