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