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