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