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