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