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