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