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