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