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