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)(25,26)(27,31)(28,30)(29,32)(2,5)(6,8)(9,11,14,13)(10,12,15,16)(17,18,21,22)(19,20,23,24)(26,28)(31,32)(2,5)(6,8)(10,15)(12,16)(18,22)(19,23)(25,27,30,29)(26,31,28,32)(1,2)(3,6)(4,5)(7,8)(9,12)(10,11)(13,15)(14,16)(17,19,21,23)(18,20,22,24)(25,28,30,26)(27,32,29,31)(1,3,4,7)(2,6,5,8)(9,13,14,11)(10,12,15,16)(17,20)(18,23)(19,22)(21,24)(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.