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)(17,18,22,21)(19,25,27,23)(20,28,29,24)(26,30,32,31)(33,34)(35,36)(37,45)(38,40)(39,47)(41,43)(42,48)(44,46)(1,3,5,11)(2,6,7,9)(4,13,14,10)(8,16,12,15)(17,19)(18,23)(20,26)(21,25)(22,27)(24,30)(28,31)(29,32)(33,35,38,43)(34,36,40,41)(37,46,47,42)(39,48,45,44)(2,7)(6,9)(8,12)(15,16)(17,18,22,21)(19,23,27,25)(20,24,29,28)(26,30,32,31)(33,34,38,40)(35,41,43,36)(37,39,47,45)(42,48,46,44)(1,3)(2,6)(4,10)(5,11)(7,9)(8,15)(12,16)(13,14)(17,20)(18,24)(19,26)(21,28)(22,29)(23,30)(25,31)(27,32)(33,36)(34,35)(37,44)(38,41)(39,42)(40,43)(45,46)(47,48) involution — undirected(1,4,5,14)(2,8,7,12)(3,10,11,13)(6,15,9,16)(17,21,22,18)(19,23,27,25)(20,28,29,24)(26,30,32,31)(33,37)(34,39)(35,42)(36,44)(38,47)(40,45)(41,48)(43,46)(1,2)(3,6)(4,8)(5,7)(9,11)(10,15)(12,14)(13,16)(17,19)(18,25)(20,26)(21,23)(22,27)(24,31)(28,30)(29,32)(33,34)(35,36)(37,39)(38,40)(41,43)(42,44)(45,47)(46,48) involution — undirectedA 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.