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