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