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