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