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