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