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