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