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