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