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