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