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