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