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