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