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