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