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