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