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