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