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