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