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