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