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