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