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