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