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