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