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