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