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