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