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