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