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