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