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