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