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