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