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