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