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