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