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