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