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