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