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