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