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