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