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