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