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