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