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