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