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