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