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