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