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