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