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