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