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