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