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