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