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