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