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