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