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