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