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