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