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