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