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