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