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