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