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