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