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