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