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