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