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