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