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