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