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