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