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