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