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