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