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