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