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)(17,18,22,26)(19,27,29,32)(20,25,21,24)(23,30,31,28)(1,2)(3,8)(4,9)(5,7)(6,10)(11,16)(12,14)(13,15)(17,19)(18,23)(20,28)(21,30)(22,29)(24,27)(25,32)(26,31) involution — undirected(1,3)(2,8)(4,11)(5,12)(6,13)(7,14)(9,16)(10,15)(20,21)(24,25)(27,32)(28,30) involution — undirected(1,4,6,5)(2,9,10,7)(3,12,13,11)(8,14,15,16)(17,20,22,21)(18,24,26,25)(19,28,29,30)(23,27,31,32)(2,10)(7,9)(8,15)(14,16)(19,29)(23,31)(27,32)(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.