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