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