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