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