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