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