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