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