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