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