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