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