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