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