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