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)(11,12)(13,14)(15,16)(18,19)(20,24)(25,26)(27,29)(28,31)(30,32)(10,14)(11,15)(17,18)(19,21)(20,22)(23,24)(26,27)(28,32) involution — undirected(11,15)(12,16)(18,19)(20,24)(25,26,29,27)(28,31,32,30)(1,2)(3,5)(4,6)(7,8)(9,11)(10,12)(13,15)(14,16)(17,19,21,18)(20,23,24,22)(25,27,29,26)(28,31,32,30)(1,3,4,7)(2,5,6,8)(9,12)(10,11)(13,16)(14,15)(17,20)(18,22)(19,23)(21,24)(25,28,29,32)(26,30,27,31)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.