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