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