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