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