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