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