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