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