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