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