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