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