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