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