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