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