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