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