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