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