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