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)(11,13)(12,14)(15,16)(17,18,24,32,22,20,23,27)(19,28,21,26,29,25,30,31)(1,3)(2,5)(4,8)(6,7)(9,10)(11,15)(12,14)(13,16)(17,19,22,29)(18,25,20,28)(21,23,30,24)(26,32,31,27)(9,11)(10,13)(12,16)(14,15)(17,20,22,18)(19,28,29,25)(21,31,30,26)(23,27,24,32)(3,8)(5,7)(11,16)(13,15)(17,21,22,30)(18,26,20,31)(19,24,29,23)(25,27,28,32)(10,14)(13,15)(19,29)(21,30)(25,28)(26,31) 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.