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