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