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