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