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