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