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