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