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