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