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