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