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