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