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