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