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