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