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