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