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