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