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)(17,18,22,27,23,28,37,43)(19,29,31,41,32,46,34,24)(20,33,36,48,35,25,42,40)(21,26,39,45,38,44,30,47)(1,3)(2,5)(4,8)(6,7)(9,10)(11,13)(12,15)(14,16)(17,19,23,32)(18,24,28,41)(20,30,35,39)(21,36,38,42)(22,34,37,31)(25,26,33,44)(27,46,43,29)(40,47,48,45)(2,6)(5,7)(9,11,13,10)(12,15,16,14)(17,20,23,35)(18,25,28,33)(19,30,32,39)(21,34,38,31)(22,36,37,42)(24,26,41,44)(27,40,43,48)(29,45,46,47)(3,8)(5,7)(10,11)(14,15)(17,21,37,30,23,38,22,39)(18,26,43,47,28,44,27,45)(19,20,34,42,32,35,31,36)(24,40,46,25,41,48,29,33)(9,12,13,16)(10,14,11,15)(20,35)(21,38)(25,33)(26,44)(30,39)(36,42)(40,48)(45,47)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.