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