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