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