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