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