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