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