One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,6,7)(3,11,12,8)(4,9,10,5)(13,14,16,15)(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)(2,7)(3,12)(5,9)(13,16)(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)(4,10)(8,11)(13,16)(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)(2,8)(4,13)(5,14)(6,12)(7,11)(9,15)(10,16)(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(1,4,6,10)(2,9,7,5)(3,13,12,16)(8,15,11,14)(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)(1,5,6,9)(2,10,7,4)(3,14,12,15)(8,16,11,13)(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.