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