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