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