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