One vertex per element, one color per generator, with an edge from x to x·s.
(1,2)(3,12,16,8)(4,17)(5,22)(6,11)(7,10)(9,20)(13,30,31,25)(14,24,15,27)(18,23,32,29)(19,28)(21,26)(33,34)(35,43,46,56)(36,47,49,40)(37,41)(38,42)(39,45,53,50)(44,58)(48,61,63,55)(51,57)(52,62)(54,59)(60,64)(1,3)(2,8)(4,18)(5,15)(6,14)(7,16)(9,25)(10,12)(11,27)(13,21)(17,23)(19,32)(20,31)(22,24)(26,30)(28,29)(33,35)(34,39)(36,44)(37,50)(38,46)(40,54)(41,56)(42,53)(43,57)(45,51)(47,52)(48,62)(49,60)(55,58)(59,63)(61,64) involution — undirected(1,4)(2,9)(3,13)(5,21)(6,20)(7,19)(8,23)(10,26)(11,28)(12,29)(14,18)(15,32)(16,31)(17,22)(24,30)(25,27)(33,36)(34,40)(35,44)(37,48)(38,49)(39,52)(41,55)(42,47)(43,58)(45,59)(46,60)(50,62)(51,63)(53,54)(56,64)(57,61) 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.