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