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