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