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