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