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