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