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