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