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