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