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