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