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