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)(13,16)(14,15)(18,20)(19,23)(25,26,30,28)(27,31,29,32)(1,3,5,4)(2,6,7,8)(9,11)(10,13)(12,14)(15,16)(19,23)(22,24)(25,27,30,29)(26,31,28,32)(2,7)(6,8)(9,12,15,13)(10,16,14,11)(17,18,21,20)(19,22,23,24)(25,27,30,29)(26,32,28,31)(1,4,5,3)(2,8,7,6)(9,13,15,12)(10,16,14,11)(17,19,21,23)(18,22,20,24)(25,28,30,26)(27,31,29,32)(1,2)(3,6)(4,8)(5,7)(9,14,15,10)(11,12,16,13)(17,20,21,18)(19,24,23,22)(25,29,30,27)(26,31,28,32)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.