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