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