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