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