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