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