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