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