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