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