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