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