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