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