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