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