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