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