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