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