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