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