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