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