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