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