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