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