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