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