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