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