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