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