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