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