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