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