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