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