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