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