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