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