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