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