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