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)(17,18,22,26)(19,20,25,24)(21,31,30,27)(23,28,32,29)(2,5)(3,7)(17,19,22,25)(18,24,26,20)(21,32,30,23)(27,29,31,28)(10,13)(14,16)(17,20,23,27,22,24,32,31)(18,25,28,21,26,19,29,30)(2,5)(6,8)(9,11,12,15)(10,14,13,16)(18,26)(20,24)(27,31)(28,29)(1,3,4,7)(2,6,5,8)(17,21,32,25,22,30,23,19)(18,27,29,20,26,31,28,24)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.