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