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