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