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