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