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