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