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