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