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