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