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