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