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