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)(33,34,39,44)(35,45,49,56)(36,50,53,59)(37,42,38,43)(40,47,57,48)(41,54,60,52)(46,58,51,55)(61,62,64,63)(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)(33,35,37,48,39,49,38,47)(34,40,43,45,44,57,42,56)(36,51,52,62,53,46,54,63)(41,58,50,64,60,55,59,61)(3,13)(7,21)(11,26)(14,16)(15,20)(22,23)(27,30)(29,31)(33,36)(34,41)(35,46)(37,52)(38,54)(39,53)(40,55)(42,59)(43,50)(44,60)(45,61)(47,62)(48,63)(49,51)(56,64)(57,58) involution — undirected(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)(33,37,39,38)(34,42,44,43)(35,47,49,48)(36,52,53,54)(40,45,57,56)(41,59,60,50)(46,62,51,63)(55,61,58,64)(4,17)(8,24)(14,16)(18,28)(22,23)(25,32)(27,30)(29,31)(33,37,39,38)(34,42,44,43)(35,48,49,47)(36,52,53,54)(40,56,57,45)(41,59,60,50)(46,63,51,62)(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.