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