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