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