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