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)(19,27)(20,24)(21,35)(22,25)(23,30)(26,38)(28,36)(29,45)(31,43)(32,46)(33,44)(34,41)(37,42)(39,48)(40,47) involution — undirected(17,19,22,31)(18,23,25,28)(20,32,34,48)(21,36,38,30)(24,40,41,45)(26,43,35,27)(29,37,47,33)(39,44,46,42)(1,3,5,11)(2,6,7,15)(4,13,14,10)(8,16,12,9)(17,18)(19,28)(20,24)(21,26)(22,25)(23,31)(27,36)(29,46)(30,43)(32,45)(33,42)(34,41)(35,38)(37,44)(39,47)(40,48)(17,20,22,34)(18,24,25,41)(19,29,31,47)(21,37,38,33)(23,39,28,46)(26,44,35,42)(27,45,43,40)(30,48,36,32)(2,7)(6,15)(8,12)(9,16)(18,25)(23,28)(24,41)(26,35)(27,43)(39,46)(40,45)(42,44) 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.