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