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