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