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