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