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