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