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