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