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