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