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)(14,15)(17,18)(19,23)(20,22)(21,24)(25,26,29,31)(27,32,30,28)(2,5)(6,7)(9,10)(11,15)(12,13)(14,16)(17,19,22,24)(18,21,20,23)(25,27,29,30)(26,28,31,32)(3,8)(6,7)(10,13)(14,15)(18,20)(19,24)(25,28,29,32)(26,30,31,27)(1,3,4,8)(2,6,5,7)(9,10)(11,14)(12,13)(15,16)(17,20,22,18)(19,21,24,23)(25,28)(26,27)(29,32)(30,31)(1,2)(3,6)(4,5)(7,8)(9,11,12,16)(10,14,13,15)(17,21)(18,19)(20,24)(22,23)(25,27)(26,28)(29,30)(31,32)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.