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