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