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)(18,23)(20,31)(21,32)(24,33)(25,34)(26,38)(27,37)(29,44)(30,43)(35,36)(39,42)(40,45)(41,48)(46,47)(17,18,24,38,21,26,20,23,22,27,31,36,32,35,33,37)(19,25,39,48,30,41,29,34,28,40,44,47,43,46,42,45)(1,3)(2,7)(4,12)(5,14)(6,13)(8,11)(9,16)(10,15)(17,19)(18,25)(20,29)(21,30)(22,28)(23,34)(24,39)(26,41)(27,40)(31,44)(32,43)(33,42)(35,46)(36,47)(37,45)(38,48) involution — undirected(1,4,6,5)(2,8,10,9)(3,12,13,14)(7,11,15,16)(19,28)(25,40)(29,42)(30,43)(34,45)(39,44)(41,46)(47,48)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.