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