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