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