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)(17,18,20,21)(19,23,24,22)(25,26)(27,30)(28,31)(29,32)(9,10,13,11)(12,15,16,14)(18,21)(22,23)(25,27,28,32)(26,29,31,30)(10,11)(14,15)(17,18,20,21)(19,23,24,22)(25,27,28,32)(26,30,31,29)(1,2)(3,5)(4,6)(7,8)(9,11,13,10)(12,15,16,14)(17,18)(19,22)(20,21)(23,24)(25,27)(26,29)(28,32)(30,31)(1,3,4,7)(2,5,6,8)(9,12,13,16)(10,14,11,15)(17,19)(18,22)(20,24)(21,23)(25,26)(27,29)(28,31)(30,32)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.