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