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