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