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