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