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