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