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)(17,18,24,19,23,21,22,26)(20,28,31,32,29,25,30,27)(1,3)(2,5)(4,8)(6,7)(9,10)(11,15)(12,14)(13,16)(17,19,23,26)(18,22,21,24)(20,27,29,32)(25,30,28,31)(2,6)(5,7)(9,11,12,16)(10,13,14,15)(17,20)(18,25)(19,27)(21,28)(22,30)(23,29)(24,31)(26,32)(3,8)(5,7)(11,16)(13,15)(17,21,22,19,23,18,24,26)(20,28,30,27,29,25,31,32)(10,14)(13,15)(20,29)(25,28)(27,32)(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.