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