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