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