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)(11,16)(12,14)(13,15)(17,18)(19,24)(20,22)(21,25)(23,30)(26,31)(27,32)(28,29)(1,3,5,4)(2,6,8,7)(10,14)(15,16)(17,19,22,28)(18,24,20,29)(21,27,23,31)(25,32,30,26)(10,15)(11,13)(14,16)(17,20,22,18)(19,26,28,32)(21,30,23,25)(24,31,29,27)(1,4,5,3)(2,7,8,6)(9,11,12,13)(10,15,14,16)(17,21,22,23)(18,25,20,30)(19,27,28,31)(24,32,29,26)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.