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