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