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