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