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