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