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