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