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