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