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