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