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