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