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