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