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