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