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)(17,18,22,20)(19,24,27,23)(21,25,29,28)(26,31,32,30)(33,34)(35,44)(36,37)(38,48)(39,41)(40,45)(42,47)(43,46)(3,9)(7,13)(10,15)(14,16)(17,19,22,27)(18,23,20,24)(21,26,29,32)(25,30,28,31)(33,35,39,45)(34,40,41,44)(36,46,47,38)(37,48,42,43)(2,6)(7,13)(8,11)(14,16)(34,41)(35,45)(36,47)(43,48) involution — undirected(1,2)(3,7)(4,8)(5,6)(9,13)(10,14)(11,12)(15,16)(17,19)(18,24)(20,23)(21,26)(22,27)(25,31)(28,30)(29,32)(33,36)(34,42)(35,46)(37,41)(38,45)(39,47)(40,43)(44,48) involution — undirected(1,3)(2,7)(4,10)(5,9)(6,13)(8,14)(11,16)(12,15)(17,20,22,18)(19,23,27,24)(21,25,29,28)(26,31,32,30)(33,37,39,42)(34,36,41,47)(35,43,45,48)(38,44,46,40)(1,4)(2,8)(3,10)(5,12)(6,11)(7,14)(9,15)(13,16)(17,21,22,29)(18,25,20,28)(19,26,27,32)(23,30,24,31)(33,38,39,46)(34,43,41,48)(35,36,45,47)(37,44,42,40)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.