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