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